Public water system · AK2280040
ActiveShageluk Water System
At a glance
Shageluk Water System (PWSID AK2280040) is an active community water system in Yukon-Koyukuk Census Area County, Alaska. It reports serving 60 people through 40 service connections. Its primary water source is groundwater, and EPA lists it as Native American-owned. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in February 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
60
Service connections
40
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Shageluk Water System compare with other water systems in Yukon-Koyukuk Census Area County?
By EPA's size categories, Shageluk Water System is a very small system (500 people or fewer). Yukon-Koyukuk Census Area County has 34 active public water systems. Its population served is well below the county average of 180 people per system, and accounts for 1% of the 6,119 people reported by systems filed under the county. Across Alaska, the 1,322 active systems average 653 people each. Nationally, the average active community water system reports serving 6,703 people, so Shageluk Water System is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Alaska has 406 active community water systems, 31% of the state's 1,322 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,054 Alaska systems (80%) list groundwater as their primary source.
Who owns and regulates Shageluk Water System?
EPA lists Shageluk Water System as Native American-owned. The AK state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 27 of the 34 active systems in Yukon-Koyukuk Census Area County (79%) are also Native American-owned.
Does Shageluk Water System have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in February 2026. The violations listed here began between July 2025 and February 2026. By type: 7 monitoring and reporting, 3 monitoring and 2 required treatment not met. The contaminant or rule involved most often is Groundwater Rule (6 of them). EPA lists 9 as resolved, 2 as archived and 1 as unaddressed. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-02-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2026-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2026-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2025-12-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2025-11-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2025-11-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2025-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-11-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2025-10-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2025-09-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2025-08-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2025-07-05 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Shageluk Water System: frequently asked questions
Who runs Shageluk Water System?
Shageluk Water System (PWSID AK2280040) is a community water system Native American-owned. It is regulated by the AK state drinking water program.
How many people does Shageluk Water System serve?
Shageluk Water System reports serving 60 people through 40 service connections in Yukon-Koyukuk Census Area County, Alaska.
Where does Shageluk Water System get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Shageluk Water System have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in February 2026. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Shageluk Water System's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in February 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the AK state drinking water program.
Where can I find Shageluk Water System's water quality report?
As a community water system, Shageluk Water System must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Yukon-Koyukuk Census Area County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Ft. Yukon Public Water System | Yukon-Koyukuk Census Area | 665 | Community | Groundwater under influence of surface water |
| Galena Wtp1 - City | Yukon-Koyukuk Census Area | 490 | Community | Groundwater |
| Nenana Municipal Water | Yukon-Koyukuk Census Area | 486 | Community | Groundwater |
| Mcgrath Water System | Yukon-Koyukuk Census Area | 341 | Community | Surface water |
| Huslia Public Water System | Yukon-Koyukuk Census Area | 323 | Community | Groundwater |
| Galena Wtp2 - Gila | Yukon-Koyukuk Census Area | 290 | Community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Shageluk Water System, PWSID AK2280040, Alaska”, https://aquacensus.com/water-systems/alaska/shageluk-water-system-ak2280040 (data as of October 1, 2026).